Revolving Shaft and Blades That Power a Boat

This page is the CodyCross answer for the clue below from Larger than Life, Group 2155, Puzzle 3 (Olympus Mons).

Question is: Revolving Shaft and Blades That Power a Boat

and the answer is: PROPELLER

Word Meaning:

PROPELLER — One who, or that which, propels.

Definitions from Wiktionary.